Sound-box for talking-machines.



Y J. VEIT. SOUND- BOX FOR TALKING MACHINES. APPLICATION FILED SEPT. 26,1910.

Patented Dec. 20, 1910.

' tone. can be obtained by an arrangement of this kind and that theusual ob ectionable dent of Hanau-on-the-Main, Germany, with tamed byshutting oil, from the membrane UNITED STATES PATENT OFFICE,

aliiifalifiii 979,231,. A Specification ofLettersliatent. p t te j -20,19

. Application filed September 26, 1910. Serial No. 5832931.

box of my invention, and Figs. 2 and 3 sec-- tions on the lines 2 -2and'3 .3 of Fig. respectively. l l

the' drawing 1 is that portion of the wooden sound-box which is appliedin front 'of the membrane 2 and which communicates with the soundinghorn. The portion 1 is; hollowed out in such inanner'as to forma cavity3 which is closed on the side adjacent to the membrane by a woodendiaphragm 5 provided with an aperture 4r f 6 7 are the two parallel thinstrips which are secured, preferably by glue or other adhesive; to thediaphragm 5 and also similarly attached to the wallet the cavity 3, and8 is the tongue. or strip which is secured. in the same ayat one endtothe dia:

To all whom it may concern: I

Beit known that I, JOHANN' Vnrr, joiner,

a sub ect of the German Emperor, and $851 40 the post-office addressHospitalstrasse No- 23 have invented new and 'usefnlImprovements inSound-Boxes for Talking-Machines, of which the following is, aspecification.

This invention has for its object to pro-. vide a sound-box for atalking machine whichshall inshape resemble, as. closely as possible;that of the human mouth. This end is at the hollow portion ofthesound-box (that is to say the portion whichis connected with the horn)by a thin apertured wooden diaphragm and providing thehollow cavity withthree thin strips of wood whereof a air are fixed to the diaphragm aswell as to-the walls of the cavity; while-the third which occupies apb'sition between the other two,' is'in the form of a tongue and beingattached to the diaphragm only and not to the walls of the'cavity, Inthis construction the two fixed strips correspond to the human cheeks,the flexible strip corresponds to the tongue, and the remaining hollowspace at either side corresponds to the gums. I have. ascertained byexperiment that surprising results, in respect of fullness and purity of"so that ityma'y have a spring-like action' Now what I claim and desireto secure by Letters Patent. is-t-he followingz j v A woodensonndingb'ox ,for a talking machine con'sisting of a hollowed outportion provided with an apertured diaphragm,- a

pair ofi'parallel strips attached both to the' diaphragm. and to thewalls of the'cavity, and a tongue attached only to the diaphragm.- 5

stantially as described; 1

In testimony, that I claim the foregoing as my invention, I have signedmy name in resence of two witnesses, this fourteenth jarring noiseemitted by talkingemachines 1S entirely done away with.

In 7 the accompanying serves toillustrate the invention; F igure I afront elevation of the improved sounddrawing which .phragm and tree atthe sides and other-end 55 so that it may have a spring like action;sub-

